Mathematics, 06.06.2021 18:30 tammycute01
Without expanding the determinants, show that the value of exach of the following determinants is zero.
1) ![\left[\begin{array}{ccc}1&w&w^{2} \\w&w^{2} &1\\w^{2} &1&w^{2} \end{array}\right]](/tpl/images/2393/9871/1cb1e.png)
2) ![\left[\begin{array}{ccc}1&bc&a(b+c)\\1&ca&b(c+a)\\1&ab&c(a+b)\end{array}\right]](/tpl/images/2393/9871/3e562.png)
3)![\left[\begin{array}{ccc}1&bc&bc(b+c)\\1&ca&ca(c+a)\\1&ab&ab(a+b)\end{array}\right]](/tpl/images/2393/9871/b9d1b.png)
4)![\left[\begin{array}{ccc}(a-b)&(b-c)&(c-a)\\(b-c)&(c-a)&(a-b)\\(c-a)&(a-b)&(b-c)\end{array}\right]](/tpl/images/2393/9871/469d2.png)
Answers: 3
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Without expanding the determinants, show that the value of exach of the following determinants is ze...
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